I still have xp pro on my pc(Q6600, 3GB ram) flies along and everything works fantastically first time, i used to game on it but that was about 1/2 years ago, havent bothered so much since and i dont really have the time/money to plunge into a computer, if i did id probably have to have win 7 to keep up with the times in gaming as you need it for the latest version of direct x etc.
The misses laptop uses vista and it runs nicely and never had a problem with it, apart from the fucking annoying little "windows has dectected/blocked certain programmes from running" message popping up every 5mins

if anyone knows how to get rid of it let me know, ive tried turning it off in services but that didnt work?